AI Upscalers Have Real Limits
Automatic upscalers (Topaz, waifu2x, Photoshop Preserve Details, online AI tools) work fine for casual web use. They fail at professional print scrutiny because they invent fake details, soften clean edges, and introduce visible artifacts that show up the moment the image is printed at scale.
- Fake "details" hallucinated by AI that don't match the real source
- Softened edges that look acceptable on screen but mushy in print
- Color shifts and fringing on logo edges
- Texture artifacts that become obvious at billboard scale
- Unrealistic skin tones and feature reconstruction on faces
For casual social posts, AI is fine. For print, packaging, signage, brand identity work, and any B2B application where the result will be inspected closely, manual reconstruction wins.